baber/WOPTO huggingface dataset:
Patent DE-4102971-A1 (DE)
Title: Screw injection moulding of plastics, esp. fast=curing gp. - has injection pressure controlled during holding=pressure phase to limit material flow for improved moulding quality near gate
Inventor: AICHELE WILFRIED DR
IPC: B29C45/57
Filed: 1991-02-01
Abstract: Process for screw injection moulding of plastics, esp. fast-curing glass-fibre reinforced polyester resin, in which the hydraulic pressure applied to the injection cylinder (17) is controlled to limit flow of material to or from the mould (23) during the holding-pressure phase. ADVANTAGE - Compared with constant holding pressure, this invention, by limiting flow, avoids cracking and surface defects in the moulding in the gate region. Compared with mechanical closing of the mould after injection, this invention is mechanically simple, requires no attachments to the mould (or multiple moulds in carousel arrangements) and avoids wear of the mechanisms, esp. with glass-fibre reinforced materials. The simple moulds also make more economic short runs of differing prods. Relatively simple control of hydraulic pressure. The moulding shrinkage can be compensated by metering the moulding mass from the cushion material
Patent DE-4103389-A1 (DE)
Title: Local stiffening of soft objects, esp. inner shoe caps - by applying molten polymer by low pressure process to release strip carrier and transferring to soft material where bonding occurs
Inventor: LANG ALBERT
IPC: A43B23/08
Filed: 1991-02-05
Abstract: Typical components e.g. shoe toe caps are mfd. by applying the polymer in a molten state and in the actual shape of the final component, onto a carrier strip and then transferring to the soft material to be stiffened prior to cooling and bonding with it. Polymer is applied to the carrier strip by a low pressure process e.g. gravure printing. The use of a dense, easy release carrier, e.g. silicone paper allows rapid transfer of the preformed component onto the soft material. A workpiece (5) comprising three plastic layers (5a,5b,5c) is formed on a dense carrier strip (4), e.g. silicone paper. The polymer is applied to the strip (4) in stages by a low pressure process, e.g. gravure printing, to ensure a perfectly shaped flat preform corresponding to the component to which is to be applied. The upper edges (6) of the individual layers are coincident, but the lower edges (7) are stepped to simulate a scarfed joint. Preforms (5) can be easily released from the carrier (4) for transfer to the soft material of the shoe upper and are heated and pressed against the latter before cooling. USE/ADVANTAGE - Used in mfr. of components based on soft materials, stiffened by thermoplastics, e.g. shoe components, is simpler and produces little scrap and allows easy handling during application of the plastic to the soft material.
Patent DE-4105376-A1 (DE)
Title: Attenuation arrangement for sec. electron multiplier - has dynode elements coupled by transistor switch and transformer
Inventor: TZSCHOPPE WOLFGANG
IPC: H01J43/30
Filed: 1991-02-21
Abstract: A secondary electron multiplier is used in the surface scanning of semiconductor wafers in an inspection process. The multiplier (1) has a photocathode (K) and anode (A) between which eleven dynode stages (D1-D11) are located. A voltage divider (2) is used to apply a voltage in stages. The cathode stages (D1-D3) are coupled via resistors and Zener diodes (5,6,7). A switching transistor (3) is coupled via a h.f. transformer (4) to an attenuation control circuit. ADVANTAGE- Provides high attenuation at short switching times, low power consumption.
Patent DE-4107666-A1 (DE)
Title: Oxygenating therapy appts. serving several patients at once - introduces oxygen@ into veins at various intervals to suit individual patients with supply from bellows and mechanical constant pressure generator
Inventor: FESS LUDWIG
IPC: A61M5/148
Filed: 1991-03-09
Abstract: The desired oxygen pressure is not produced through actively working appts. components but rather through a passive force applied to bellows. The oxygen can be administered at variable intervals. A constant oxygen pressure is made available at various therapy positions at the same time. The applied force results from the wt. of the covering plate of the bellows. The appts. is connected to an oxygen bottle with pressure and dosing appts. The bellows is filled with oxygen when a valve (V1) is opened by operation of an electrical switch. Another switch is assigned to the therapy position. The interval switching is effected by another valve (V2) whose state is indicated by a LED. The therapy line is digitally displayed. A potentiometer allows the pause time to be varied from 2 to 10 seconds. ADVANTAGE - Individual dosing.
Patent DE-4108700-A1 (DE)
Title: Turntable for bottle handling machine - has non-slip surface formed by spraying plastics onto carrier disc
Inventor: ZODROW RUDOLF
IPC: B65C9/04
Filed: 1991-03-16
Abstract: A bottle handling machine has a turntable which transports the bottles to the filling or labelling station. The turntable consists of a carrier plate (1) to which a disc (6) of elastic synthetic material is bonded. The outer surface (8) of the disc (6) is formed from a layer of small sharp edged grains to form a non-slip surface. The carrier plate (1) and the disc (6) are made of similar types of plastics so that the disc (6) can be formed by spraying the plastics on the surface of the carrier plate (1) so that the zone (7) between the disc and carrier plate bonds the disc to the carrier plate. USE/ADVANTAGE - Bottle handling machine. Spraying the plastics on to the carrier disc reduces manufacturing cost.
Patent DE-4108970-A1 (DE)
Title: Shower cubicle partition with door at one side
Inventor: LUX DIETMAR
IPC: A47K3/36
Filed: 1991-03-19
Abstract: The shower partition partic. for corner entry showers includes a support column (1) whose upper end is fixed by a console bracket (10) on a room wall (7). The support column is mounted between the first opening area (29) and the adjoining second area (30). The support column can rest at the bottom on the ground or on the edge of the shower tray (4) where it is fixed by a further lower console bracket to the room wall.     Where the partition is an outwardly opening pivot door (5,6) the pivot bearing for the door is held on the support column. Where the partition is a multi-part sliding door one of the upper guide rails fixed on the room wall is supported by the support column. Shelves can be arranged in the area which does not open.
Patent DE-4111055-A1 (DE)
Title: Attachment of medical equipment supporting rail - by means of spring clip which grips rail and has locking wedges
Inventor: RONGE JUN GEORG
IPC: F16B2/10
Filed: 1991-04-05
Abstract: The housing contains two wedge grips, which can connect the housing to a hook or rod. The wedge grips are shaped as tapering wedges on the outside and are placed with e tip of the wedges facing away from each other, and are urged apart by a spring. In the neighbourhood of the tips of the wedges are  flexible or loose bearings. These may be moved between loose and clamped settings. The spring ensures that the intermediate position between these two and settings is unstable. USE - Clamping system for equipment inhousing, is esp. for medical or first aid equipment.  (6pp Dwg.No.1)
Patent DE-4111427-A1 (DE)
Title: Double action dredging head - is for mining aggregates using hydraulically cutting teeth and compressed air conjunction
Inventor: SCHNELL LUDWIG
IPC: E02F3/92
Filed: 1991-04-09
Abstract: The excavation head is used for extracting aggregates underwater. A combination of compressed air feeds, and hydraulically driven rotating teeth cut into and loosen the aggregate strata. A number of heads can be arranged to operated in a series by a mechanical linkage. Water, fed in under pressure, causes the aggregate to form a fluid mix, which is then air lifted to the surface. USE/ADVANTAGE - Increased efficiency over existing hydraulic/air excavators for obtaining aggregates from underwater sites.
Patent DE-4115816-A1 (DE)
Title: Press bands prodn. for paper-making - by feeding e.g. fabric strips obliquely on to roller or substrate belt and embedding them in liq. coating of e.g. polyurethane resin
Inventor: MATUSCHCZYK UWE
IPC: D21F3/02
Filed: 1991-05-15
Abstract: Thermally static flexible press bands which are porous to liquids are produced, partic. for wet pressing in paper-making machines, by casting on to a substrate a liq. polymer (e.g. polyurethane) in which at least two layers of narrow strips of e.g. fabric are embedded. Strips are disposed at an angle to the direction of prodn. bands. ADVANTAGE - High mechanical strength bands with low thermal changes are cheaply obtd. Product also has a long service life.ba
Patent DE-4116349-A1 (DE)
Title: Rectangular fuel tank for vehicle - includes reserve section between two outer tanks and connection pipes
Inventor: SKALETZ MANFRED
IPC: B60K15/077
Filed: 1991-05-18
Abstract: The rectangular tank (10) is for the fuel for the IC engine of a vehicle. It has a middle reserve section (16) with suction and return pipes (30,40) and parallel oppositely opening delivery pipes (42,44) near the floors of the tanks projecting through the dividing walls (18,20). The delivery pipes ensure that when the fuel drops below a certain level, e.g. when refuelling is required or when the vehicle is negotiating a curve, the fuel remaining in the reservoir section can flow unaffected by inertia forces. USE/ADVANTAGE - Reserve fuel tank system for a vehicle in which the constructional costs are reduced.
Patent DE-4121604-A1 (DE)
Inventor: JONNER WOLF-DIETER DIPL ING
IPC: B60T8/48
Filed: 1991-06-29
Abstract: The brake system (1) is to be simplified and its operation improved. The hydraulic brake system (1) has at least one valve arrangement (e.g. 13) to modulate the braking pressure in a wheel brake (e.g. 6). In addition, there is a high-pressure pump (22) to feed pressure medium back from the wheel brake (e.g. 6) into a brake master cylinder (3) in anti-lock control mode or to convey pressure medium from the master cylinder (3) to a wheel brake (e.g. 6) in drive slip control mode. On the intake side, a stop valve (28) with a spring-operated through-flow position (28a) and a stop position (28b) controllable by the pressure on the master cylinder side is fitted in front of the high-pressure pump (22). The hydraulic brake system (1) with anti-lock and drive slip control device (34) is especially applicable to motor vehicles.
Patent DE-4122364-A1 (DE)
Inventor: SCHMITZ DETLEF
IPC: B05B11/04
Filed: 1991-07-05
Abstract: Spray closure (14) for a container (10) which can only be actuated in an inverted position and consists of an insertion element (16) which can be inserted into the neck opening (12) and of a cap (22) which can be rotated between a closed position and a spray position. An air pipe (30) projects into the part of the container which contains air (34) and has a coaxial air channel (32) which opens into an outlet bore (42) in the end side (48) of the insertion element (16). The diameter of the outlet bore (42) of the air pipe (30) is dimensioned to be smaller than the inner diameter of the air pipe (30). The insertion element (16) has at least one fluid bore (38) which connects the interior (36) of the container (10) in each case to a fluid channel (40) which opens into the outlet bore (42) of the air pipe (30). The cross-sections of the fluid bore (30) and the fluid channel (40) are dimensioned to be so small that fluid can only pass into the outlet bore (42) of the air channel (32) when the container is actuated. The outlet bore (42) of the air pipe (30) is connected in the open rotation position to an outlet opening (24) in the cap (22). The spray is precisely controllable. <IMAGE>
Patent DE-4123970-A1 (DE)
Title: Connecting element for structural parts - comprises basic strip element with claw like projections along edges
Inventor: WEYER WALTER
IPC: F16B12/04
Filed: 1991-07-19
Abstract: The connecting fitment for holding together two individual parts such as in demountable furniture systems has a basic element (1a) extending over the two parts whereby pointed and/or sharp projections (3) protrude from the basic element to engage like claws in the material of the two parts. The basic element can be a flat strip. The projections (3) can be formed by angled spaced edges of the basic element. The strip can be straight or angled. ADVANTAGE - Easy use whereby the strip can just be hammered in.
Patent DE-4126453-A1 (DE)
Inventor: RICHERT WITHOLD
IPC: B60V3/04
Filed: 1991-08-09
Abstract: A track-guided transport vehicle (1) for transporting big loads along a track contains a synchronous linear drive provided with a long stator (5) that extends along the track and an exciter winding arranged on the vehicle. The long stator (5) generates a field of travelling waves that cooperates with a static magnetic field generated by an exciter winding (E) on the vehicle so as to move it forward. In order to supply electric drive energy to the compressor unit (8) that generates the compressed air required for air cushions (3, 3'), a higher frequency alternative current is superimposed on the current supplied to the windings along the track, said alternative current being coupled by a transformer to the winding on the vehicle. There the energy can be decoupled by means of a rectifier and be made available for feeding the electromotor of the compressor unit (8).
Patent DE-4128586-A1 (DE)
Title: Haymaking machine for windrowing - is coupled to tractor by outrigger projecting to one side and swivelling frame
Inventor: LEPOSA WOLFGANG ING
IPC: A01D78/10
Filed: 1991-08-28
Abstract: The haymaking machine has a coupling frame (2) for connecting to the three-point coupling of a tractor. An outrigger (4) is attached to one end of the frame (2) by a high level pivot, and can be locked in a transverse position to the line of travel (12). The free end of the outrigger (4) is connected to the machine frame (5) by a pivot (6) allows the machine (1) to swing horizontally in all directions. The other end of the outrigger (4) is fixed to the coupling frame (2) by a horizonal pivot which is in line with the travel direction (12). The machine is supported on three wheels (7,7',8). USE/ADVANTAGE - Design of haymaking machine allows maximum freedom of movement for the machine in addition to an elevating capability.
Patent DE-4128703-A1 (DE)
Title: Universal deactivating method for munitions and explosives - using high pressure liq. jets, useful for munitions, discovered in decomposed state
Inventor: RATH DIETMAR DR ING
IPC: F42B33/06
Filed: 1991-08-29
Abstract: Munitions and explosives of all types are rendered safe by cutting the casing (12) in a restricted area with the aid of one or several high pressure liq. streams with a pressure of more than 100 MPa and a dia. up to 5mm, from the nozzle head (1) with a high pressure nozzle. The same method is then used to cut the explosive and then liquid with a pressure of less than 50 MPa and at a high flow rate dissolves and removes the explosive. USE/ADVANTAGE - Partic. for munitions discarded in states of decomposition, economic and environmentally acceptable.
Patent DE-4130847-A1 (DE)
Title: Locking top-piece for support surface in vehicle - uses locking pin responsive to rapid acceleration forces on mass body
Inventor: NONNER HORST DIPL ING
IPC: B60R7/04
Filed: 1991-09-17
Abstract: The locking top-piece (1) is for a support surface or shelf in the interior of a vehicle. It has a downwardly-pointing projection with a hole (8) and is supported by a spring (23). The upper end (6) of a pin (3) on a movably mounted mass body (2) is directed towards an oblique plane (5) on a locking pin (4) aligned with the hole in the top-piece. During rapid deceleration the mass body slides forward and the upper end of the pin slides on the oblique plane of the locking pin assembly, pushing it sideways into the locking hole in the top-piece (1). USE/ADVANTAGE - Locking top-piece or lid is for shelf or glove compartment in vehicle. Under normal conditions is easy to open but in the event of a crash it is securely locked into place.
Patent DE-4131433-A1 (DE)
Title: Swivel mechanism for frame supported gearbox - has gearbox flanged to frame instead of to bracket and input shaft, parallel to output shaft.
Inventor: KEMPF BERND DIPL ING
IPC: B60K17/32
Filed: 1991-09-21
Abstract: The mechanism (44) has a bracket (52), a pivot arm (54) pivoted on it by a bearing (74), coaxially to a take-off shaft (62) of a drive (48). A servo-drive (56) engages the pivot arm, bracket, or frame (46). The gearbox is flanged to the frame, instead of to the bracket, and has an input shaft (64), extending  parallel to an output shaft (66), and coaxially to the take-off shaft. The pivot arm has a first and second leg (76,78), removably connected to each other. It also has a stop (84), formed as bearing for the servo-drive. USE/ADVANTAGE - For vehicles working  on uneven ground,e.g. agricultural or earthmoving ones,with simple conversion.
Patent DE-4138191-A1 (DE)
Title: Forming layered coil windings on spool - moving guide for wire axially at controlled rate with axial reversal of feed direction produced by mechanism.
Inventor: SCHIRN MARTIN
IPC: H01F41/086
Filed: 1991-11-15
Abstract: A coil winding machine receives wire (1) from a main spool over a tensioning pulley (3) and guide pulley (2) to a guide leading to the coil winding spool (6). The guide pulley and tensioning pulley are mounted on a frame (7) that moves axially on rollers to form layers of windings on the main coil winding spool. The motion occurs with a reciprocating action with an automatic feed direction reversal. The automatic reversal takes place when the wire guide (5) contacts the sides of the spool flange. This causes a pivoting action to take place. ADVANTAGE - Accurate layering of coil windings on spool independently of wire dia. and mfg. tolerances.
Patent DE-4201477-A1 (DE)
Title: Arc welding method - uses magnetic field to position pilot arc or ionised stretch
Inventor: APPEL MICHAEL
IPC: B23K9/067
Filed: 1992-01-21
Abstract: In arc welding of metal workpieces, where initially weld points are formed by a pilot arc or ionised stretch, the pilot arc or ionised stretch are positioned as required by the magnetic field generated by the arc. USE/ADVANTAGE - The method is used for applications such as welding bolts to a metal plate. The welding arc is accurately position by the magnetic field to give arc welding without protective gas
Patent DE-4201881-A1 (DE)
Title: Rotary swather with rotary rakes following curved track - has changeable position of curved track through rotation about rotary axis of rake
Inventor: KRONE BERNARD
IPC: A01B73/04
Filed: 1992-01-24
Abstract: The tines (11) occupy their raking position seen in the travel direction (F) only behind the axis of rotation (13) and thus the delivery direction (A) of this rotary rake (6) changes whilst the rotary direction (D) remains the same. The curved path (15) of an associated rake is turned about the rotary axis (13) of the rake about 180 deg between two stop positions. Two rotary rakes can be attached to a support beam extending across the travel direction wherein the beam can swivel abut a vertical swivel pin and can be fixed by fixing means in different inclined positions. USE - The stalk material can be placed left or right selectively.
Patent DE-4206654-A1 (DE)
Title: Steering of all-wheel steered  road vehicle
Inventor: ACKERMANN JUERGEN PROF DR
IPC: B62D7/15
Filed: 1992-03-03
Abstract: The yaw movement is decoupled from the lateral movement of the front axle, by an integrating feedback of a measured yawing speed signal. The dynamic of the yawing movement can be modelled by a linear system of the second order.A specified yaw damping (DG) is reached by means of a damping parameter (kD) in the equation: kD = 2DG sq.rt. m.lv / ch (in s) across the steering of the rear wheels at an angle (delta h rad), whereby the yaw speed (r rad/sec), travel speed (v metres/sec) and steering wheel angle (deltaL rad) are measured and deltah = (l/v kD)(Wh r), is computed by means of a microprocessor, and Wh is formed as the control variable from the measured steering wheel angle (deltaL) by a prefilter (Fh) assigned to the rear wheel steering.
Patent DE-4219661-A1 (DE)
Title: Synergistic nitrification inhibitor compsns. - contg. cyanamide and pyrazole deriv. or nitrapyrin
Inventor: HARTBRICH HANS-JOACHIM
IPC: C05G3/90
Filed: 1992-06-16
Abstract: Compsns. for inhibiting or regulating nitrification of NH4 N in soil or other plant growth media comprise cyanamide (I) and either a pyrazole deriv. of formula (II) or `nitrapyrin', i.e. 2-chloro-6-trichloromethyl-pyridine (III). Where Z = H, CONH2 or C(NH)NH2. The ratio of (I) to (II) or (III) is 1-100:1. The compsns. may also contain a liq. fertiliser contg. urea and/or NH4 cpds., (I)-(III) present in an amt. of 0.1-50 (esp. 0.1-30) wt.% based on the fertiliser N content. The compsns. may also contain other agricultural chemicals, e.g. plant protection agents, pesticides or soil improvers. The application rate is 1-200 (esp. 5-50) kg/ha. USE/ADVANTAGE - The compsns. are esp. useful for inhibiting nitrification of liq. N fertilisers. The compsns. have synergistically enhanced activity.
Patent DE-4221211-A1 (DE)
Title: Fastening arrangement for clew of sailboard sail to telescopic boom - is used where boom has two separate rear spars, ends of which are coupled to hold clew directly
Inventor: MARKER HANNES
IPC: B63B35/79
Filed: 1992-06-27
Abstract: The telescopic boom has two separate rear spars (9), the rear end sections (10) of which may be coupled to each other, and are directly connected to the clew. A double-sided coupling device (7) is fastened to either side of the clew. Coupling elements (8) on the ends of the rear spars act with the device. The coupling device has a holder unit (6) on either side of the clew, and the coupling element of a spar is inserted into each. The unit has recesses, which are covered by a locking device when the coupling elements are in place. USE/ADVANTAGE - Boom is smaller and lighter, and direct power introduction into clew of sail for sailboard takes place
Patent DE-4221853-A1 (DE)
Title: Fixture locating in borehole of concrete mass - has belt and plastics sleeve, bolt having additional head section with wedge end attaching to expanded cone
Inventor: FISCHER ARTUR PROF DR
IPC: E04B1/41
Filed: 1992-07-03
Abstract: A fixture for location in a borehole of a concrete mass has a threaded bolt with an expanding cone at its front end, and an anchoring sleeve which is expanded by the cone. A head section (6) with a wedge end (7) attaches to the cone. The bolt (1) has a reduced diameter over a section of its length (2), over which the anchoring sleeve (3) locates. ADVANTAGE - Location in tension zone provides high security.
Patent DE-4222418-A1 (DE)
Title: Measuring composition of gas mixture of excimer laser with high accuracy - by producing corona discharge in gas mixture to determine at least one pair of current-voltage curves associated with discharge
Inventor: RUETER DIRK
IPC: H01S3/225
Filed: 1992-07-08
Abstract: A discharge current is specified for determining the current and voltage values in the corona discharge, and the associated corona voltage (Uc) is measured. The gas mixture contains an inert carrier gas, to which is added an electron negative gas or a gaseous chemical compound with an electron negative component. The measurement takes place in the gas circulation circuit of the excimer laser. A constant current source (20) is provided for the corona discharge and a discharge gap (10) is formed between a plate (14) and an electrode tip (12). A voltmeter (22) determines the voltage drop (Uc). ADVANTAGE - High accuracy, can be used directly in gas circuit of excimer laser without taking gas samples.